An infamous online debate was reignited recently, following the sharing of an optical illusion on social media. Back in February 2015, internet users became fixated with a bodycon dress that paradoxically appeared either blue and black or white and gold to different people due to the peculiar lighting in the photo causing something of an illusion.
This optical puzzle led to a fierce split among people, who pledged allegiance to either #blackandblue or #whiteandgold, inspiring a multitude of discussions on social media that even prompted scientific scrutiny.
The entire saga originated when Alana MacInnes from Uist and Caitlin McNeill of Colonsay took to Tumblr seeking opinions on the true hue of the dress.
After MacInnes snapped a picture of the notorious garment, McNeill escalated the image to viral status by posting it online along with a plea for help: "Guys please help me - is this dress white and gold, or blue and black?